@inproceedings{SIGMOD-2007-LeeHW,
	author        = "Jae-Gil Lee and Jiawei Han and Kyu-Young Whang",
	booktitle     = "{Proceedings of the 25th ACM SIGMOD International Conference on Management of Data}",
	doi           = "10.1145/1247480.1247546",
	isbn          = "978-1-59593-686-8",
	pages         = "593--604",
	publisher     = "{ACM}",
	title         = "{Trajectory clustering: a partition-and-group framework}",
	year          = 2007,
}